Vehicle parking system and method of controlling the same

Abstract

Disclosed herein is a method of controlling a system for neutral range parking of a vehicle. The power of the vehicle is turned off based on operation of a start button when a shift range of a vehicle transmission is a P-range. It is determined whether a brake pedal is operated after the power is turned off and, when the brake pedal is determined to be operated after the power is turned off, an automatic lever solenoid valve of the transmission is operated to allow the transmission to shift from the P-range to another shift range by releasing engagement between the automatic lever solenoid valve and an engaging lever.

What is claimed is: 
     
       1. A method of controlling a system for neutral range parking of a vehicle, the method comprising:
 turning off power of the vehicle based on operation of a start button when a shift range of a vehicle transmission is a P-range; 
 determining whether a brake pedal is operated after the power is turned off; and 
 when the brake pedal is determined to be operated after the power is turned off, operating an automatic lever solenoid valve of the transmission to allow the transmission to shift from the P-range to another shift range by releasing engagement between the automatic lever solenoid valve and an engaging lever; 
 determining whether a time elapsed after the power is turned off exceeds a predetermined reference time; and 
 when the time elapsed after the power is turned off is determined to exceed the predetermined reference time, maintaining a power-off state so as not to perform gear-shifting anymore. 
 
     
     
       2. The method according to  claim 1 , wherein a controller determines whether the brake pedal is operated after the power is turned off and wherein the automatic lever solenoid valve of the transmission is operated under control of the controller. 
     
     
       3. The method according to  claim 2 , wherein the controller determines whether a signal indicative of the operation of the brake pedal is input to the controller within a predetermined reference time. 
     
     
       4. The method according to  claim 2 , wherein the predetermined reference time is pre-input to the controller, and wherein the controller maintains the power-off state so as not to perform gear-shifting anymore. 
     
     
       5. The method according to  claim 2 , further comprising determining whether the shifting from the P-range to another shift range is completely performed by the controller by operating the automatic lever solenoid valve of the transmission, when a signal indicative of the operation of the brake pedal is input to the controller in the determining whether the brake pedal is operated. 
     
     
       6. The method according to  claim 5 , wherein the controller turns off the power and terminates control when the controller determined that the shifting from the P-range to another shift range is completed. 
     
     
       7. The method according to  claim 2 , wherein the controller controls the shift range to shift only to an N-range in shifting from the P-range to another shift range by the operation of the automatic lever solenoid valve in the operating the automatic lever solenoid valve. 
     
     
       8. The method according to  claim 2 , wherein the controller controls a door to be lockable even when the shifting from the P-range to another shift range is performed in the operating the automatic lever solenoid valve. 
     
     
       9. The method according to  claim 1 , wherein determining whether the brake pedal is operated after the power is turned off is stopped after the predetermined reference time. 
     
     
       10. The method according to  claim 9 , further comprising sending a message indicating that the brake pedal can be operated from the P-range to another shift range when the controller determined that the time elapsed after the power is turned off does not exceed the predetermined reference time. 
     
     
       11. The method according to  claim 1 , further comprising sending a message indicating that the brake pedal can be operated from the P-range to another shift range, the message being sent when the power is turned off. 
     
     
       12. The method according to  claim 11 , wherein the message indicates that a driver should operate the brake pedal to shift from the P-range to another shift range. 
     
     
       13. The method according to  claim 1 , wherein operating the automatic lever solenoid valve of the transmission to allow the transmission to shift from the P-range to another shift range comprises allowing the transmission to shift from the P-range to an N-range. 
     
     
       14. The method according to  claim 1 , wherein the automatic lever solenoid valve is electrically connected to a B+ terminal of a battery and wherein operating the automatic lever solenoid valve of the transmission comprises determining whether a signal indicative of the operation of the brake pedal is active within a predetermined reference time after the power is turned off in the turning off power and then operating the automatic lever solenoid valve of the transmission allowing the transmission to shift from the P-range to another shift range. 
     
     
       15. A method of controlling a system for neutral range parking of a vehicle, the method comprising:
 turning off power of the vehicle based on operation of a start button when a shift range of a vehicle transmission is a P-range; 
 determining whether a brake pedal is operated after the power is turned off; 
 when the brake pedal is determined to be operated after the power is turned off, operating an automatic lever solenoid valve of the transmission to allow the transmission to shift from the P-range to another shift range by releasing engagement between the automatic lever solenoid valve and an engaging lever; 
 determining whether the shifting from the P-range to another shift range is completely performed by operating the automatic lever solenoid valve of the transmission based on a signal indicative of the operation of the brake pedal; 
 when determining that shifting from the P-range to another shift range is not completely performed, determining whether an elapsed time after the power is turned off in the turning off power exceeds a predetermined reference time. 
 
     
     
       16. The method according to  claim 15 , wherein a controller maintains a power-off state so as not to perform gear-shifting any more when the elapsed time after the power is turned off is determined to exceed the predetermined reference time. 
     
     
       17. The method according to  claim 15 , further comprising sending a message indicating that the brake pedal can be operated from the P-range to another shift range when it is determined that the elapsed time after the power is turned off does not exceed the predetermined reference time. 
     
     
       18. A vehicle comprising:
 a battery configured to supply power; 
 a start button connected to the battery; 
 a brake pedal; 
 a transmission configured to shift gears by operation of a shift lever; 
 an automatic lever solenoid valve electrically connected to a B+ terminal of the battery; and 
 a controller configured to:
 turn off power of the vehicle based on operation of the start button when a shift range of the transmission is a P-range; 
 determine whether the brake pedal is operated after the power is turned off; 
 when the brake pedal is determined to be operated after the power is turned off, operate the automatic lever solenoid valve to allow the transmission to shift from the P-range to another shift range by releasing engagement between the automatic lever solenoid valve and an engaging lever; 
 determine whether a time elapsed after the power is turned off exceeds a predetermined reference time; and 
 when the time elapsed after the power is turned off is determined to exceed the predetermined reference time, maintain a power-off state so that gear-shifting cannot be performed anymore. 
 
 
     
     
       19. The vehicle according to  claim 18 , further comprising an engine, wherein the start button is connected to the battery to turn on/off the engine. 
     
     
       20. The vehicle according to  claim 18 , wherein the controller is configured to send a message indicating that the brake pedal can be operated from the P-range to another shift range, the message being sent when the power is turned off.